Hifonics BXI 2010 D

[Perry Babin]

From post 78 to post 79, what was the problem?

 

[mike49504]

The diode measured good but i replaced it anyway and amp powerd right up.

 

[Perry Babin]

With the driver board out, do you still have DC on the inductors?

 

[mike49504]

NO

 

[Perry Babin]

Did you check the rest of the transistors on the driver board?

 

[mike49504]

Im gonna order some new transistors for the board.

1D:mmbta42 ?

2D:mmbta92 ?

 

[Perry Babin]

Yes. Did you check the larger ones?

 

[mike49504]

Ill just order new ones to be safe.

They are marked P2D😛ZTA92 ?

 

[Perry Babin]

Yes.

 

[mike49504]

Theres a couple Transistors on the driver board marked 1D and a sideways K is that still a mmbta42 ?

 

[Perry Babin]

Yes, as far as I know.

 

[Tenson]

I know this is an old thread, but I found it searching for a mosfet replacement taken from a bench supply. Has the same part number mentioned at the start of this thread. I was looking for P75NF758, but I found it is definitely an & symbol at the end. Part is just a STP75NF75.